Adapter for vacuum tubes



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`AJUAJPTJER EUR, VACUUM TUBES. i

l from the socket. I lln'order to prevent damage or any undue 'distortion to the springs under such circumstances, llv have provided means independent ot the spring supports for limiting the'longitudinal or rotational mo'vement of the socket member without in any way intertering with the action of the springs in preventing the transmission of vibrations to the discharge device.

rlhe novel iteatures which l believe to be My invention itself, however, will best be understood from reference to the following specification taken in connection with the accompanying drawing in which Fig. 1 is a view partly in elevation and partly in crossscction of a device embodying the features oll myinvention; lFig. 2 is an exploded view of the device shown in F ig. 1, while Fig. 3 is,a`

socket for a discharge device mounted therein.

Referring to the drawing, ll have indicated at l an,` insulating. cup-shaped member or basetof standard/form which is provided with four hollow terminals 2. An 'insulating socket member or adapter 3, which comprises upper and'lowersections A and 5 respectively, joined together by a central rivet 6, is mounted in the base 1 and spaced therefrom. A plurality of coil springs 7 are inserted in base 1 and supportvthe vsocket member 3 therein.v

. Each spring is electrically connected at one end to oneot the hollow electrodes 2 andat the otherfend to a metallic member 8 mounted bentoutwardly,l as indicated `rat 9, and soldered to the upper portion of spring 7.

Base 1 is provided on its periphery with a characteristic of. my invention are setfo'rth with particularity in the appended claims.

plan view of a standard base member with a..

in. socket 3. A portion of each member 8 is" Application :tiled .l'uly 23, 19%. Serial Nala/1,503, f v

plurality of relatively large openings 10 and a projecting portion. 11, as indicated in Figs.` 2` and 3. ln the assembly of the socket and base, the lower ends of the springs 7` are first soldered to the hollow terminals 2. Pins 12 are then inserted through the center of the relatively large openings 10 and driven into dll' the lower portion 5 of the socket member 3.

'll he pins 12 do not normally engage the sides oi' the openings but when a tube or discharge i device 13 is inserted in socket member 3 the l latter member is depressed until pins 12 engage the lower portions of openings 10, after which the tube may be lirmly inserted into the socket. Likewise, when the tube. is removed,

pins 12 engage the upper portion of openingsl 10 and permit removalot the tubewithout causing any undue distortion of the spring supports.

A cap or cover member 14 provided with 'depending fingers 15 and a felt lining 16 is -slidably mounted on the socket member 1, the

depending lingers. being spacedapart to accommodate the pins 12 and the projecting portion 11. 'r

1 `What l claim as new and desire to secure by Letters Patent of the United States, is

v1. ln combination, a cup-shaped member provided with a plurality of projecting terminals, a socket adapted to support an electric discharge device, said socket being spaced from and flexibly supported in said cupshaped member "land pro-vided with a plutill rality of openings, contacts mounted in said openings and electrically connected to said terminals, and means independent of said idexible support for limiting the longitudinal movement of the socket member when a disj charge devlce is inserted in or wlthdrawn.A

from the` socket. v

2. ln combination, a cup-shaped member l provided with a pluralityof projecting termiy nals,` a socket adapted to support Ianelectric discharge device, exible means for supporting the socket in the cup-shaped member and in spaced relation thereto' and means on said socket adapted to engage the cup-shaped member and thereby'limit the longitudinal movement of said socket member when a dischargedevice is inserted in or withdrawn from the socket. A

3. 1n combination, a cup-shaped member having a plurality of projecting terminals and a plurality of openings in the periphery rality of pins mounted on the socket and prothereof, a socket member adapted to support jeeting through the openings in the periphery an electric discharge device, said socket being of said cup-shaped member to limit movement l" resiliently mounted in the cup-shaped memof the socket in said cup-shaped member.

5 ber and provided with a plurality of openings, In Witness whereof, I have hereunto set my contacts mounted in said openings and eleetrihand this 21st day of July, 1926. cally connected to said terminals, and a plu- CLARK R. PHIFFER. 

